diff --git a/srcpkgs/thunderbird/patches/ff85-ppc64-xptcall.patch b/srcpkgs/thunderbird/patches/ff85-ppc64-xptcall.patch
deleted file mode 100644
index b270d836f2f..00000000000
--- a/srcpkgs/thunderbird/patches/ff85-ppc64-xptcall.patch
+++ /dev/null
@@ -1,63 +0,0 @@
-diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc64_linux.cpp b/xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc64_linux.cpp
---- xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc64_linux.cpp
-+++ xpcom/reflect/xptcall/md/unix/xptcinvoke_ppc64_linux.cpp
-@@ -91,7 +91,13 @@
-         if (!s->IsIndirect() && s->type == nsXPTType::T_DOUBLE) {
-             if (nr_fpr < FPR_COUNT) {
-                 fpregs[nr_fpr++] = s->val.d;
--                nr_gpr++;
-+                // Even if we have enough FPRs, still skip space in
-+                // the parameter area if we ran out of placeholder GPRs.
-+                if (nr_gpr < GPR_COUNT) {
-+                    nr_gpr++;
-+                } else {
-+                    d++;
-+                }
-             } else {
-                 *((double *)d) = s->val.d;
-                 d++;
-@@ -101,7 +107,11 @@
-             if (nr_fpr < FPR_COUNT) {
-                 // Single-precision floats are passed in FPRs too.
-                 fpregs[nr_fpr++] = s->val.f;
--                nr_gpr++;
-+                if (nr_gpr < GPR_COUNT) {
-+                    nr_gpr++;
-+                } else {
-+                    d++;
-+                }
-             } else {
- #ifdef __LITTLE_ENDIAN__
-                 *((float *)d) = s->val.f;
-diff --git a/xpcom/reflect/xptcall/md/unix/xptcstubs_ppc64_linux.cpp b/xpcom/reflect/xptcall/md/unix/xptcstubs_ppc64_linux.cpp
---- xpcom/reflect/xptcall/md/unix/xptcstubs_ppc64_linux.cpp
-+++ xpcom/reflect/xptcall/md/unix/xptcstubs_ppc64_linux.cpp
-@@ -103,7 +103,13 @@
-         if (!param.IsOut() && type == nsXPTType::T_DOUBLE) {
-             if (nr_fpr < FPR_COUNT) {
-                 dp->val.d = fpregs[nr_fpr++];
--                nr_gpr++;
-+                // Even if we have enough FPRs, still skip space in
-+                // the parameter area if we ran out of placeholder GPRs.
-+                if (nr_gpr < GPR_COUNT) {
-+                    nr_gpr++;
-+                } else {
-+                    ap++;
-+                }
-             } else {
-                 dp->val.d = *(double*)ap++;
-             }
-@@ -113,7 +119,11 @@
-             if (nr_fpr < FPR_COUNT) {
-                 // Single-precision floats are passed in FPRs too.
-                 dp->val.f = (float)fpregs[nr_fpr++];
--                nr_gpr++;
-+                if (nr_gpr < GPR_COUNT) {
-+                    nr_gpr++;
-+                } else {
-+                    ap++;
-+                }
-             } else {
- #ifdef __LITTLE_ENDIAN__
-                 dp->val.f = *(float*)ap++;
-
diff --git a/srcpkgs/thunderbird/template b/srcpkgs/thunderbird/template
index 7c2a6c3b4f3..dc018ee585d 100644
--- a/srcpkgs/thunderbird/template
+++ b/srcpkgs/thunderbird/template
@@ -3,7 +3,7 @@
 # THIS PKG MUST BE SYNCHRONIZED WITH "srcpkgs/thunderbird-i18n".
 #
 pkgname=thunderbird
-version=78.7.1
+version=78.8.0
 revision=1
 build_helper="rust"
 short_desc="Standalone Mail/News reader"
@@ -11,7 +11,7 @@ maintainer="Érico Nogueira <ericonr@disroot.org>"
 license="MPL-2.0, GPL-2.0-or-later, LGPL-2.1-or-later"
 homepage="https://www.thunderbird.net/"
 distfiles="${MOZILLA_SITE}/${pkgname}/releases/${version}/source/${pkgname}-${version}.source.tar.xz"
-checksum=0ccc5a54fb2548489c9579f677cb4ff3c191b1d1fcf33bef6b1cf6eb704e385a
+checksum=3f36fa5ffc85888eaf77afb5cdd51bdadce841b7ae0744f5f5cd147ef4975a9d
 
 lib32disabled=yes